1. Department of Chemistry National Taiwan University Taipei 10617 Taiwan
2. Institute of Lighting and Energy Photonic National Yang Ming Chiao Tung University Tainan 71150 Taiwan
3. Organic Electronic Research Center Ming Chi University of Technology New Taipei City 24031 Taiwan
4. Department of Electronic Engineering Ming Chi University of Technology New Taipei City 24031 Taiwan
5. Institute of Atomic and Molecular Science Academia Sinica Taipei 10617 Taiwan